isDOM=document.getElementById;  //DOM1 browser (MSIE 5+, Netscape 6, Opera 5+)
isMSIE4=document.all && document.all.item  && !document.getElementById;  //Microsoft Internet Explorer 4
isNetscape4=document.layers;  //Netscape 4.*
isOpera5=window.opera && isDOM;  //Opera 5+
isMozilla=(navigator.appName=="Netscape") && isDOM;  //Mozilla & Netscape 6
isMSIE5=document.all && document.getElementById;  //Microsoft Internet Explorer 5+

//=======================================================================
function my_alt(text){
  var x,y;
  var id='myalt';
  var pos=0;
  var str=new String(text);
  
  text='<table bgcolor="#FFFFE1" class="TextLite"><tr><td width="200">'+text+'</td></tr></table>';
  
  if(isMSIE4 || isMSIE5){
	x = event.clientX+window.document.body.scrollLeft;
	y = event.clientY+window.document.body.scrollTop;
  }
  else if(isOpera5){
	x = event.clientX;
	y = event.clientY;
  }
  else if(isNetscape4 || isMozilla){
	x = e.pageX;
	y = e.pageY;
  }
 
 
 if(isMSIE4){
   document.all[id].style.left=x-pos;
   document.all[id].style.top=y+15;
   if(str.length>0){document.all[id].style.visibility="visible";}
  }else if(isDOM){
   document.getElementById(id).style.left=x-pos;
   document.getElementById(id).style.top=y+15;
   if(str.length>0){document.getElementById(id).style.visibility="visible";} 
  }if(isNetscape4){
   document.layers[id].left=x-pos;
   document.layers[id].top=y+15;
   if(str.length>0){document.layers[id].visibility="show";}
  }
   document.getElementById(id).innerHTML=text;
}
//---------------------------------
function my_alt_none(){
  var id='myalt';
  if(isMSIE4){
   document.all[id].style.visibility="hidden";
  }else if(isDOM){
   document.getElementById(id).style.visibility="hidden"; 
  }if(isNetscape4){
   document.layers[id].visibility="hide";
  }
//=======================================================================
}